如何在散景图上正确绘制Unix日期？

Question

我正在尝试在下图的x轴上获取日期时间数据。当前，时间数据来自以下列表：Unix格式：[1586088239188, 1586091716319, 1586095462692, ...]

这是我要输出到Django模板的Django视图中的代码。我想将每个列表日期元素转换为人类可读的日期格式。我能够接近：“ 2020-04-12 03:01:47.708000”，但是它不能在x轴上显示。

这是Django def视图代码，其图表输出如下：

def chart(request):

    chart_endpoint = "https://api.coingecko.com/api/v3/coins/bitcoin/market_chart?vs_currency=usd&days=7"
    request_chart_data = requests.get(chart_endpoint)
    results_chart_data = request_chart_data.json()
    chart_data = results_chart_data['prices']

    #print(chart_data)

    price = [item[1] for item in chart_data]
    price_date = [item[0] for item in chart_data]

    p = figure(title='Line Plot Price and Date', x_axis_label='x', y_axis_label='y')

    p.line(price_date, price)

    script, div = components(p)

    return render(request, 'crypto/chart.html', {'script': script, 'div': div})

这是我尝试的日期转换以及下面该结果的图表输出。如您所见，所有日期都是1.587e + 12等...

def chart(request):

    chart_endpoint = "https://api.coingecko.com/api/v3/coins/bitcoin/market_chart?vs_currency=usd&days=7"
    request_chart_data = requests.get(chart_endpoint)
    results_chart_data = request_chart_data.json()
    chart_data = results_chart_data['prices']

    #print(chart_data)

    price = [item[1] for item in chart_data]
    price_date = [item[0] for item in chart_data]

    for num in price_date:
        price_date_formatted = datetime.datetime.fromtimestamp(num / 1e3)
        print(price_date_formatted)

    p = figure(title='Line Plot example', x_axis_label='x', y_axis_label='y')

    p.line(price_date_formatted, price)

    script, div = components(p)

    return render(request, 'crypto/chart.html', {'script': script, 'div': div})